摘要:
Photopolymerizable polymer composites based on dimethacrylate systems have been increasingly utilized as dental restorative materials. One of the biggest drawbacks of current dental resin systems is the volume shrinkage and shrinkage induced stresses that arise during the polymerization. Other major problems include incomplete double bond conversion and insufficient wear resistance. This invention involves the development of an entirely novel approach to the photopolymerization process that utilizes thiol-ene systems as low shrinkage and ultra-low shrinkage stress dental restorative materials. Compared with the traditional dimethacrylate dental resins, these novel photopolymerizations have demonstrated a dramatically decreased volume shrinkage, extremely rapid polymerization, abilities to photopolymerize ultrathick materials and achieve much higher conversion, lack of oxygen inhibition and ultra-low shrinkage stress due to low volume shrinkage and drastically delayed gel point conversion. These polymers have thus shown outstanding suitability as dental restorative materials.
摘要:
The present invention provides polymerizable dental compositions comprising a dimer acid-derived monomer such as a dimer acid-derived di(meth)acrylate monomer. In one embodiment, the dimer acid-derived monomer is of the formula (I): wherein R1, R2, R3, R4, R5 and R6 are independently selected from H and optionally substituted C1-C25 straight-chained or branched aliphatic, optionally containing 1 or more double or triple bonds, wherein one or more carbons are optionally replaced by R* wherein R* is —C(O)—, —C(O)C(O)—, —C(O)NR7—, —C(O)NR7NR8—, —C(O)O—, —OC(O)—, —NR7CO2—, —O—, —NR7C(O)NR8—, —OC(O)NR7—, —NR7NR8—, —NR7C(O)—, —NR7C(O)O—, —S—, —SO—, —SO2—, —NR7—, —SO2NR7— or —NR7SO2—, where R7 and R8 are independently selected from H and optionally substituted aliphatic, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; provided that at least two of R1, R2, R3, R4, R5 and R6 are substituted C1-25 straight-chained or branched aliphatic wherein at least one carbon is replaced by R* and at least one of the substituents is an alkenyl group.
摘要翻译:本发明提供包含二聚酸衍生的单体如二聚酸衍生的二(甲基)丙烯酸酯单体的可聚合牙科组合物。 在一个实施方案中,二聚酸衍生的单体具有式(I):其中R 1,R 2,R 3,R 4,R 5和R 6独立地选自H和任选取代的C 1 -C 25直链或支链脂族基,任选地含 1或更多个双键或三键,其中一个或多个碳任选被R *取代,其中R *是-C(O) - , - C(O)C(O) - , - C(O)NR 7 - C(O)NR 7 NR 8 - , - C(O)O-,-OC(O) - , - NR 7 CO 2 - , - O - , - NR 7 C(O)NR 8 - -NR 7 C(O) - , - NR 7 C(O)O-,-S-,-SO-,-SO 2 - , - NR 7 - , - SO 2 NR 7 - 或-NR 7 SO 2 - ,其中R 7和R 8独立地选自H 取代的脂族,环烷基,杂环烷基,芳基或杂芳基; 条件是R 1,R 2,R 3,R 4,R 5和R 6中的至少两个是取代的C 1-2直链或支链脂族基,其中至少一个碳被R *代替,并且至少一个取代基是烯基。
摘要:
The present invention provides polymerizable dental compositions comprising a dimer acid-derived monomer such as a dimer acid-derived di(meth)acrylate monomer. In one embodiment, the dimer acid-derived monomer is of the formula (I): wherein R1, R2, R3, R4, R5 and R6 are independently selected from H and optionally substituted C1-C25 straight-chained or branched aliphatic, optionally containing 1 or more double or triple bonds, wherein one or more carbons are optionally replaced by R* wherein R* is —C(O)—, —C(O)C(O)—, —C(O)NR7—, —C(O)NR7NR8—, —C(O)O—, —OC(O)—, —NR7CO2—, —O—, —NR7C(O)NR8—, —OC(O)NR7—, —NR7NR8—, —NR7C(O)—, —NR7C(O)O—, —S—, —SO—, —SO2—, —NR7—, —SO2NR7— or —NR7SO2—, where R7 and R8 are independently selected from H and optionally substituted aliphatic, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; provided that at least two of R1, R2, R3, R4, R5 and R6 are substituted C1-25 straight-chained or branched aliphatic wherein at least one carbon is replaced by R* and at least one of the substituents is an alkenyl group.
摘要翻译:本发明提供包含二聚酸衍生的单体如二聚酸衍生的二(甲基)丙烯酸酯单体的可聚合牙科组合物。 在一个实施方案中,二聚酸衍生的单体具有式(I):其中R 1,R 2,R 3,R 4,R 5和R 6独立地选自H和任选取代的C 1 -C 25直链或支链脂族基,任选地含 1或更多个双键或三键,其中一个或多个碳任选被R *取代,其中R *是-C(O) - , - C(O)C(O) - , - C(O)NR 7 - C(O)NR 7 NR 8 - , - C(O)O-,-OC(O) - , - NR 7 CO 2 - , - O - , - NR 7 C(O)NR 8 - -NR 7 C(O) - , - NR 7 C(O)O-,-S-,-SO-,-SO 2 - , - NR 7 - , - SO 2 NR 7 - 或-NR 7 SO 2 - ,其中R 7和R 8独立地选自H 取代的脂族,环烷基,杂环烷基,芳基或杂芳基; 条件是R 1,R 2,R 3,R 4,R 5和R 6中的至少两个是取代的C 1-2直链或支链脂族基,其中至少一个碳被R *代替,并且至少一个取代基是烯基。
摘要:
The present invention provides novel (meth)acrylic and (meth)acrylamide monomers and polymers produced from those monomers. The monomers of the invention each include only a single vinyl functionality and at least one non-vinyl functionality that can be varied to achieve desired monomer/polymer properties. The invention additionally provides methods of producing polymers from these mono-vinyl monomers.
摘要:
The present invention provides a method for modifying a surface of a polymer derived from a mixture comprising a thiol monomer and an olefinic monomer. The method comprises exposing at least a portion of the polymer surface to electromagnetic radiation of sufficient energy to modify the polymer surface. The present invention also provides a polymer derived from polymerizing a mixture of monomers comprising a thiol monomer, an olefinic monomer, and an iniferter.
摘要:
The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
摘要:
Monomers having a C-B-A-B-C structure are disclosed, where A is a core of either trithiocarbonate and allyl sulfide, where B are linker units, and where C are end units. The end units may comprise acrylates, methacrylates, alcohol(s), amine(s), and alkynes, among others. The linker units may include an alkane, alkene, phenyl, diphenyl, or benzylic group, among others. Methods of synthesizing such compounds are also disclosed.
摘要:
Methods, devices, systems, and materials are disclosed for diffraction unlimited photofabrication. A method is provided where a photoresponsive material is illuminated with a first optical pattern at a first wavelength of light. The first wavelength of light alters a solubility of the photoresponsive organic material. The photoresponsive material is also illuminated with a second optical pattern at a second wavelength of light. The second wavelength of light hinders the ability of the first wavelength of light to alter the solubility of the photoresponsive organic material where the second optical pattern overlaps the first optical pattern. The photoresponsive organic material is then developed.
摘要:
Dental compositions and disulfide monomers described. The disulfide monomer comprises a disulfide backbone group wherein each of the sulfur atoms are bonded to a group terminating with an ethylenically unsaturated norbornyl group; and at least one other monomer comprising at least two ethylenically unsaturated groups.
摘要:
Dental compositions and disulfide monomers are described. The disulfide monomer comprise a disulfide backbone group wherein each of the sulfur atoms are bonded to an ethylenically unsaturated group via a divalent linking group and the linking group comprises at least one heteroatom; and at least one other monomer ethylenically unsaturated monomer.